On 02/15/2013 02:31 PM, Jason Villalta wrote:
Is there any way easy way to make this setting dependent on the
storage definition? For example some primary storage may need this
set to one value such as cache=writeback such as with the case of ZFS,
GlusterFS, CEPH. Then other storage may want a different setting such
as cache=writethough or none which is the case with a local ext4
storage or NFS.
Exactly.
I brought this up about a week ago, see this thread:
http://markmail.org/thread/qmrod55gfmhwzot4
It shouldn't be a global property, it should be defined per storage
pool, or even better, per disk offering.
Right now we are talking about the cache setting, but tomorrow it could
be a different setting.
Wido
On Thu, Feb 14, 2013 at 11:08 PM, Rajesh Battala
<rajesh.batt...@citrix.com> wrote:
Hi Jason Villalta,
In LibvirtVmDef.java, there is DiskDef class , get the cache value from the Global
config, while constructing the xml in the override method the class toString() specify
the cache value, currently it is using "none".
NOTE: whenever there is change in GC value, MS should restart for the value to
take effect.
Thanks
Rajesh Battala
-----Original Message-----
From: Rajesh Battala [mailto:rajesh.batt...@citrix.com]
Sent: Friday, February 15, 2013 9:22 AM
To: cloudstack-us...@incubator.apache.org; cloudstack-
d...@incubator.apache.org
Subject: RE: Change qcow disk cache=none
Hi Jason Villalta,
Can you raise the ticket for the same. I can work on it if you assign to me.
Thanks
Rajesh Battala
-----Original Message-----
From: Edison Su [mailto:edison...@citrix.com]
Sent: Friday, February 15, 2013 4:59 AM
To: cloudstack-us...@incubator.apache.org
Subject: RE: Change qcow disk cache=none
The code is at https://git-wip-us.apache.org/repos/asf?p=incubator-
cloudstack.git;a=blob;f=plugins/hypervisors/kvm/src/com/cloud/hypervis
or/kv
m/resource/LibvirtVMDef.java;h=acfd9cf1fe8eba217f09e20adf3101d1295d51d
a;hb=HEAD, search "cache".
you can add a global configuration in cloudstack, or add a
configuration in agent.properties, to specify cache attribute.
-----Original Message-----
From: Jason Villalta [mailto:ja...@rubixnet.com]
Sent: Thursday, February 14, 2013 2:16 PM
To: cloudstack-us...@incubator.apache.org
Subject: Re: Change qcow disk cache=none
Ok, I see the folks at openstack ran into a similar issue.
https://bugs.launchpad.net/nova/+bug/959637
How can I contribute to this? Can you recommend a part of the code
to look at so I can build and test a patch?
On Thu, Feb 14, 2013 at 5:13 PM, Edison Su <edison...@citrix.com> wrote:
need to change cloudstack java code, right now, it's hard coded to
"cache=none".
-----Original Message-----
From: Jason Villalta [mailto:ja...@rubixnet.com]
Sent: Thursday, February 14, 2013 1:45 PM
To: cloudstack-us...@incubator.apache.org
Subject: Change qcow disk cache=none
Is there a way to change this kvm disk cache setting in
Cloudstack or
template?
If so where is the setting applied?
--
--
Jason Villalta
Co-founder
800.799.4407 | www.RubixTechnology.com
--
--
Jason Villalta
Co-founder
800.799.4407 | www.RubixTechnology.com